Home / 38,809,685,666.88-53,557,527,581.28-20,988,343,166.40

Finding the Fourth Proportional to 38,809,685,666.88, 53,557,527,581.28 and 20,988,343,166.40

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Solution

The fourth proportional to 38,809,685,666.88, 53,557,527,581.28 and 20,988,343,166.40 is: 28,964,000,833.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,809,685,666.88 : 53,557,527,581.28 = 20,988,343,166.40 : x
  2. Step 2: Convert to fraction form
    38,809,685,666.88/53,557,527,581.28 = 20,988,343,166.40/x
  3. Step 3: Cross multiply
    38,809,685,666.88x = 53,557,527,581.28 × 20,988,343,166.40
  4. Step 4: Simplify right side
    38,809,685,666.88x = 1,124,083,768,019,837,648,896
  5. Step 5: Solve for x
    x = 1,124,083,768,019,837,648,896/38,809,685,666.88
  6. Step 6: Final answer
    x = 28,964,000,833.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.